Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Genetics

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
Question
Answer
Question
Answer
Question
Answer
Synapsis occurs during ____ but not during ______   Meiosis, Mitosis   What is indicated when a single-character testcross yields offspring in a 1:1 phenotypic ratio   The parent with the dominant phenotype was heterozygous   What are Linked loci   Loci on the same chromosome   What is the exchange of parts between nonhomologous chromosomes   Translocation  
🗑
What is the phenomenon during meiosis, where homologous chromosomes sometimes stick together and do not separate properly   Nondisjunction   Both chloroplasts and mitochondria carry   Extranuclear genes   Y-linked genes are passed from who to who   From father to son   Cells that have more than two complete sets of chromosomes are termed___________.   Polyploid  
🗑
What is the normal complement of sex chromosomes in a human male   One X chromosome and one Y chromosome   Who demonstrated that genes are located on chromosomes   Morgan   A harmless variant of S. pneumoniae became pathogenic when mixed with a heat-killed pathogenic variant as a result of _____.   Transformation   The X-ray diffraction studies conducted by ______ were key to the discovery of the structure of DNA   Franklin  
🗑
In excision repair of DNA, damaged DNA is excised by _____.   Nuclease   Repetitive DNA sequences at the ends of chromosomes are called   Telomeres   What is an enzyme made up of a protein and an RNA sequence that serves as a template for telomeric sequence addition   Telomerase   What is a difference between a DNA and an RNA molecule   DNA is double-stranded, whereas RNA is single-stranded  
🗑
What is not needed for DNA replication   Ribosome   An old DNA strand is used as a _____ for the assembly of a new DNA strand   Template   The synthesis of a new strand begins with the synthesis of a   RNA primer complementary to a preexisting DNA strand   What are the four bases contained in DNA   Adenine, Guanine, Cytosine, Thymine  
🗑
One strand of a DNA molecule has the base sequence ATAGGT. The complementary base sequence on the other strand of DNA will be _____   TATCCA   In a eukaryotic cell, what does DNA contain   Sugar Deoxyribose   The DNA structures of prokaryotes and eukaryotes are different in several ways, but one way in which these two DNAs are the same is that _____   Both have a sugar-phosphate backbone   What is the weakest bonds in DNA   Two nitrogenous bases  
🗑
What term describes a rare change in the DNA of a gene ultimately creating genetic diversity   Mutation   The flow of information in a cell proceeds   From DNA to RNA to protein     The order of the nucleotides in the molecule   What process occurs in the cytoplasm of a eukaryotic cell   Translation  
🗑
A mutagen causes   Change in the base sequence of DNA   A gene is usually _____   The information for making a polypeptide   How many nucleotides are needed to code for a protein with 450 amino acids   at least 1,350   Where does transcription take place in a eukaryotic cell   Nucleus  
🗑
What catalyzes the linkage between ribonucleotides to form RNA   RNA polymerase   What is a point mutation where a single base pair is inserted or deleted from DNA   Frame-shift mutation   In eukaryotes, which mechanism of gene regulation operates after transcription but before translation of mRNA into protein   RNA splicing and editing   Polysomes may be defined as what   Functional groups of ribosomes  
🗑
Why is Ultraviolet (UV) radiation damaging   It causes mutations in the DNA   What are the bonds that hold tRNA molecules in the correct three-dimensional shape   Hydrogen bonds   What does Amino acid activation involve   Attachment to tRNA   The nucleic acid of a virus particle is enclosed in a protein coat known as   Capsid  
🗑
What is a virus called that attacks a bacterium   Phage   Describe the general mode of action of a virus   The viral genome takes over the host cell's central dogma machinery   ______ are naked strands of RNA and ______ are infectious protein particles   Viroids and prions   A correct sequence of DNA segments composing an operon is _____.   Promoter, Operator, Enzyme-coding genes  
🗑
As a result of the lytic cycle, _____   the host cells DNA is destroyed   What is the function of reverse transcriptase   Catalyzes the formation of DNA from an RNA template   What is the source of a viral envelope   Host cell membrane   Double-stranded viral DNA is incorporated into a host cell as a _____   Provirus  
🗑
Regulatory proteins bind to _____   The operator   In the presence of a regulatory protein the lac operon is _____   Not transcribed   What are viruses called that infect bacteria   Bacteriophages   What term is associated with a viral genome that has been incorporated into a bacterial cell's chromosome   Prophage  
🗑
In the lytic life cycle of phages what enters the host cell   Nucleic acid core of the phage   What is a phage that inserts itself into the host DNA called   Lysogenic   What occurs in the lytic cycles of a DNA virus and an RNA retrovirus   Production of DNA   Reverse transcription, carried out by retroviruses, is the process by which _____.   RNA information is copied into DNA  
🗑
DNA segments very similar to real genes but which do not yield functional products are called   Pseudogenes   What are Histones   Proteins around which DNA is coiled   What is the difference between tandemly repetitive and interspersed repetitive DNA   Interspersed repetitive DNA is found throughout the genome   What are the simplest bacterial transposons   Insertion sequences  
🗑
Why are your muscle and bone cells different   Different genes are switched on and off in each type of cell   DNA methylation is a mechanism used by eukaryotes to _____.   Inactivate genes   Rearrangement of the genome plays an important role in the _____ system   Immune   _____ bind to DNA enhancer regions   Activators  
🗑
Enzyme complexes that break down protein are called _____   Proteasomes   What is the function of a spliceosome   RNA processing   During Interphase, _____ can be seen with a light microscope   Heterochromatin   Segments of eukaryotic DNA that are able to move from one site to another in the genome are called   Transposons  
🗑
In plants, the structures that develop from meristems depend on the expression of ______ genes   Organ-identity   What is programmed cell death   Apoptosis   In C. elegans the gene that initiates the cascade that results in apoptosis is the __________ gene   Ced-9   What is the highly conserved segment of homeotic genes   Homeobox  
🗑
Cytoplasmic determinants are coded for by maternal genes   True   Cells influence each other's development by a process known as __________.   Induction   What has the earliest influence on development   Cytoplasmic determinants   Differentiation __________.   Requires the transcription of tissue-specific genes  
🗑
Embryonic tissue that persists in the adult plant is called __________   Meristem   What is Electrophoresis used for   To separate fragments of DNA   What is Southern blotting   A technique used to study RFLPs   What is an enzyme called that makes DNA from an RNA template   Reverse transcriptase  
🗑
What is the source of the reverse transcriptase used in recombinant DNA technology   Retroviruses   DNA synthesized using an RNA template is called   cDNA   The so-called sticky ends of a plasmid or bacterial chromosome are ____________   Unpaired bases produced by a restriction enzyme   Why does bacteria use restriction enzymes   Destroy foreign DNA  
🗑
In eukaryotes, the structures consisting of associations of Histones and DNA are called   Nucleosomes   What are the active genes associated with the loosely packed chromatin   Euchromatin   What is the name of the technology for combining genes from different species   Recombinant DNA technology   In what ways are sticky ends and nucleic acid probes alike   They both undergo complementary base pairing  
🗑
What can be used to find a particular nucleotide sequence within a mass of DNA   Nucleic acid probe   The term used for the fact that restriction enzymes cut DNA into pieces of different lengths   RFLP   The unpaired nucleotides produced by the action of restriction enzymes are referred to as _____.   Sticky ends   In order to insert a human gene into a plasmid, both must _____   Be cut by the same restriction enzyme  
🗑
What enzyme forms covalent bonds between restriction fragments   DNA Ligase   What is a symptom of vitamin A deficiency   Blindness   Name a vitamin A precursor   Beta-carotene   DNA used in recombinant DNA techniques is first cut into fragments by   Restriction enzymes  
🗑
The process by which cells become specialized is called   Diffusion   True or False Haploid cells can divide by meiosis   False   By what process can fetal cells may be removed along with fluid from the womb   Amniocentesis   Which of the following is correct with regard to aneuploidy   It can be represented by 2n + 1  
🗑
A two-stage type of cell division in sexually reproducing organisms that results in cells with half the chromosome number of the original cell is called   Meiosis   Nuclear division resulting in cells that contain half the parental chromosome number is _____.   Meiosis   A man who has type B blood and a woman who has type A blood could have children of which of the following phenotypes   A, B, AB, or O   The phenomenon where a particular allele can have different effects if it is inherited from a male rather than a female   Genomic imprinting  
🗑
What produces offspring genetically identical to the parent   Asexual reproduction   A photograph of all a persons chromosomes is called   Karyotype   What is the gene interaction called when one gene pair will interact to control the expression of a second gene pair   Epistasis   Human mitochondria is inherited from who   Inherited from the mother  
🗑
A human somatic cell contains how many chromosomes   46   What is the division of one cell into two   Cytokinesis   A woman with type O blood is expecting a child. Her husband is type A. Both the woman's father and her husband's father had type B blood. What is the probability that the child will have type O blood   50 percent   If two genes are linked _____.   They are on the same chromosome  
🗑
What is the diploid stage of a plant that exhibits an alternation of generations   Sporophyte   What is the term for an alternative version of a gene   Allele   The general term for the production of offspring with new combinations of traits inherited from the two parents is   Genetic recombination   What is the term that describes the order of genes on a chromosome based on recombination frequencies   Linkage map  
🗑
When does replication of all the chromosomal DNA occur   Before a cell divides   Individuals have different phenotypes because the underlying genotypes contain instructions for different sets of _____   Polypeptides   The most common phenotype in a natural population is referred to as the _____   Wild Type   The Y chromosomes of mammals contain genes that code for whatMaleness The Y chromosomes of mammals contain genes that code for whatMaleness   Maleness  
🗑


   

Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
 
To hide a column, click on the column name.
 
To hide the entire table, click on the "Hide All" button.
 
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
 
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.

 
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how
Created by: kendrag
Popular Biology sets